Dyfyniad APA

Longhurst, R. (1973). Geometrical & physical optics (3rd ed.). Orient Longman.

Dyfyniad Arddull Chicago

Longhurst, R.S. Geometrical & Physical Optics. 3rd ed. New Delhi: Orient Longman, 1973.

Dyfyniad MLA

Longhurst, R.S. Geometrical & Physical Optics. 3rd ed. Orient Longman, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.